membrane process

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• Membrane bioreactor — (MBR) is the combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment with plant sizes up to 80,000 population… …   Wikipedia

• Membrane operation — or membrane process is considered like a unit operation in chemical engineering. In chemistry membrane operations utilize artificial membranes to separate mixtures. According to driving force of the operation it is possible to distinguish:… …   Wikipedia

• Membrane (selective barrier) — Schematic of size based membrane exclusion A membrane is a layer of material which serves as a selective barrier between two phases and remains impermeable to specific particles, molecules, or substances when exposed to the action of a driving… …   Wikipedia

• Membrane emulsification — (ME) is a relatively novel technique for producing all types of single and multiple emulsions (o/w, w/o, w/w, w/o/w, o/w/o, m/w, s/o/w), e.g. for DDS (drug delivery system), solid micro carriers for encapsulation of drug or nutrient, solder… …   Wikipedia

• Membrane fouling — is a process where solute or particles deposit onto a membrane surface or into membrane pores in a way that degrades the membrane s performance. It is a major obstacle to the widespread use of this technology. Membrane fouling can cause severe… …   Wikipedia

• Membrane roofing — is a type of roofing system for buildings. It is used on flat or nearly flat roofs to prevent leaks and move water off the roof. Membrane roofs are most commonly made from synthetic rubber, thermoplastic (PVC or similar material), or modified… …   Wikipedia

• Membrane curvature — is the geometrical measure or characterization of the curvature of membranes. The membranes can be naturally occurring or man made (synthetic). An example of naturally occurring membrane is the lipid bilayer of cells, also known as cellular… …   Wikipedia

• Membrane technology — The membrane technology covers all process engineering measures for the transport of substances between two fractions with the help of permeable membranes. That means in general mechanical separation process for separation of gaseous or liquid… …   Wikipedia

• Membrane transport — In cellular biology the term membrane transport refers to the collection of mechanisms that regulate the passage of solutes such as ions and small molecules through biological membranes namely lipid bilayers that contain proteins embedded in them …   Wikipedia

• Membrane protein — Crystal structure of Potassium channel KvAP. Calculated hydrocarbon boundaries of the lipid bilayer are indicated by red and blue dots. A membrane protein is a protein molecule that is attached to, or associated with the membrane of a cell or an… …   Wikipedia

• Membrane potential — Differences in concentration of ions on opposite sides of a cellular membrane lead to a voltage called the membrane potential. Many ions have a concentration gradient across the membrane, including potassium (K+), which is at a high inside and a… …   Wikipedia